American Crow vs Barn Owl
Corvus brachyrhynchos 比較対象 Tyto alba
Side-by-Side Comparison
| 属性 | American Crow | Barn Owl |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Tyto alba |
| 目 | Passeriformes | Strigiformes |
| 科 | Corvidae | Tytonidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | 35.0 cm (13.8 in) |
| 翼開長 | 99.0 cm (39.0 in) | 90.0 cm (35.4 in) |
| 体重 | 450.0 g (15.87 oz) | 350.0 g (12.35 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Almost exclusively small mammals, especially voles and mice. Hunts using extraordinary hearing to locate prey … |
| 一腹卵数 | 3-7 | 2-16 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Barn Owl
Open farmland, grasslands, and marshes. Nests in barns, church steeples, tree cavities, and purpose-built nest boxes.
Song & Call Comparison
American Crow
Classic 'caw-caw-caw' repeated in series. Family groups use distinct dialects. Also gives rattling, knocking, and a short 'cah' flight call. Highly social and vocal.
Barn Owl
An eerie, drawn-out rasping shriek 'shreeeeee' — not a hoot. Also gives hissing, snoring, and bill-snapping when disturbed. Chicks call with a persistent rasping hunger call.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Barn Owl
The most widespread owl and one of the most widespread land birds, found on every continent except Antarctica.
保全状況
American Crow
Barn Owl
How to Tell Them Apart
American Crow
All black with a slight glossy sheen. Squared-off tail and smooth throat distinguish it from the common raven.
Straight, sturdy black bill smaller than a raven's
Barn Owl
Pale golden-buff upperparts with delicate grey mottling. Pure white heart-shaped face and white to pale buff underparts. Ghostly white appearance in flight.
Pale pinkish hooked bill nearly concealed by the facial disc
About These Birds
American Crow
北米全域に広く分布する大型のカラス（体長40〜53cm）。全身光沢のある黒で、知性が高く強い社会性を持つ。Corvus brachyrhynchos（アメリカガラス）は北米で最もよく見られるカラスで、交通量の多い道路に堅い木の実を置いて車に割らせる「道具使用」が観察されている。Corvidae科。
Barn Owl
メンフクロウはあらゆるフクロウの中で最も非対称な耳を持ち、動物界最高の聴覚的方向定位能力を誇る。完全な暗闇の中でも音だけで獲物を捕まえることができる。特徴的なハート形の顔は放物線状の皿として機能し、ずれた両耳に音を集める。